Results 51 to 60 of about 10,616 (265)
American Journal of Agricultural Economics, EarlyView.Abstract This paper derives a firm‐level threshold, the Herfindahl Neutral Point, from the standard concentration index used in merger review. At this threshold, a marginal expansion leaves the index unchanged. Firms below the threshold reduce concentration when they expand; firms above it increase concentration.
Andrew J. Keller, Krishna P. Paudel
wiley +1 more source
Multimorbidity and Associations with Cognition and Alzheimer's Disease Biomarkers
Annals of Neurology, EarlyView.Objective Multimorbidity, the coexistence of 2 or more chronic conditions, has been linked to cognitive aging and Alzheimer's disease (AD) and AD‐related dementias, yet the mechanisms remain unclear. We aimed to examine the associations of multimorbidity with cognition and biomarkers across multiple mechanistic pathways.
Xiaqing Jiang +45 more
wiley +1 more source
Statistical Theory and Related Fields, 2018 In this paper, we consider the statistical analysis for the dependent competing risks model in the constant stress accelerated life testing with Type-II progressive censoring. It is focused on two competing risks from Lomax distribution.
Xuchao Bai +3 more
doaj +1 more source
Plug-in Estimation of Dependence Characteristics of Archimedean Copula via Bézier Curve
Revstat Statistical Journal, 2023 This article introduces measurement of the dependence between variables with a dependence structure defined by Archimedean copulas. The estimation of the dependence measure, such as Kendall’s tau as well as the lower and upper tail dependence, is ...
Selim Orhun Susam +1 more
doaj +1 more source
, 2016 Kendall’s Tau between network properties and club functionalities in international and domestic transfer networks.
Xiao Fan Liu (341941) +4 more
core +1 more source
, 2022 In this note, we derive upper bounds on Kendall’s tau and Spearman’s rho for multivariate zero-inflated continuous variables often encountered in insurance. A lower bound for Spearman’s rho is also established in the bivariate case. These bounds are easy
Trufin, Julien, Mesfioui, Mhamed
core +1 more source
The Anatomical Record, EarlyView.Abstract Primates show a high degree of locomotor diversity that engenders similar variance in limb bone cross‐sectional geometry and bending strength: leaping primates have stronger hindlimb bones whereas suspensory species have stronger forelimb bones.
Angela M. Mossor +7 more
wiley +1 more source
Kendall’s Tau-b correlation coefficients for individual participants’ egg counts between surveys.
, 2019 Kendall’s Tau-b correlation coefficients for individual participants’ egg counts between surveys.
Aye Moe Moe Lwin (6368891) +6 more
core +1 more source
Anatomical Sciences Education, Volume 18, Issue 3, Page 254-263, March 2025.Abstract The recent coronavirus disease (COVID‐19) forced pre‐university professionals to modify the educational system. This work aimed to determine the effects of pandemic situation on students' access to medical studies by comparing the performance of medical students.
José Manuel García +9 more
wiley +1 more source
Dependence Modeling, 2017 Several successful approaches to structure determination of hierarchical Archimedean copulas (HACs) proposed in the literature rely on agglomerative clustering and Kendall’s correlation coefficient.
Górecki J., Hofert M., Holeňa M.
doaj +1 more source